Embed the appliances in the server.

This add a /appliances call

gns3server/controller/appliance.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2016 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import uuid
+
+
+class Appliance:
+
+    def __init__(self, appliance_id, data):
+        if appliance_id is None:
+            self._id = str(uuid.uuid4())
+        else:
+            self._id = appliance_id
+        self._data = data
+
+    @property
+    def id(self):
+        return self._id
+
+    def __json__(self):
+        """
+        Appliance data (a hash)
+        """
+        return self._data